GDK Computer Systems & Services

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Apps: 2

Total installs: 24K

Avg rating: ★ 3.79

Ratings: 35

Latest release: Jan 28, 2026

How this developer operates

Carrier title HAPP for Hotels holds 100% of the developer's installs — a one-app developer
Hit rate 0% of launches reach 100k installs (0 of 2 at least 30 days old)
Release rhythm a new app every ~10.9 years on average
Maintenance 0 of 2 apps updated in the last 90 days · last update 291 days ago

App	Style	Rating	Installs	Released
HAPP for Hotels	Travel & Local	★ 3.8	10,000+	Feb 26, 2015
Cognary Tasks	Productivity	—	1+	Jan 27, 2026